Climatological Report (Monthly)
Issued by NWS

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059
CXUS56 KMTR 010909
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
109 AM PST SAT MAR 01 2025

...................................

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             81   02/05/2011
 LOW              21   02/20/2018
HIGHEST           73   02/27                          72  02/24
                       02/28
LOWEST            29   02/10                          33  02/08
                       02/11
AVG. MAXIMUM    61.2                                60.7
AVG. MINIMUM    40.0                                41.8
MEAN            50.6                                51.3
DAYS MAX >= 90     0                                   0
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     4                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          5.08               3.95    1.13     4.91
DAILY AVG.      0.18                                0.17
DAYS >= .01       10                                  13
DAYS >= .10        6                                  12
DAYS >= .50        4                                   5
DAYS >= 1.00       2                                   1
GREATEST
 24 HR. TOTAL   1.95   02/03 TO 02/04               1.47  02/03 TO 02/04


DEGREE DAYS
HEATING TOTAL    399                                 391
 SINCE 7/1      1855                                  MM
COOLING TOTAL      0                                   0
 SINCE 1/1         0                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.5
RESULTANT WIND SPEED/DIRECTION   3/200
HIGHEST WIND SPEED/DIRECTION    30/210    DATE  02/06
                                30/200          02/13
HIGHEST GUST SPEED/DIRECTION    42/230    DATE  02/04
                                42/200          02/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.36
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       7
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      6
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$